Non-Convex Weighted Lp Minimization based Group Sparse Representation Framework for Image Denoising

5 Apr 2017 Qiong Wang Xinggan Zhang Yu Wu Lan Tang Zhiyuan Zha

Nonlocal image representation or group sparsity has attracted considerable interest in various low-level vision tasks and has led to several state-of-the-art image denoising techniques, such as BM3D, LSSC. In the past, convex optimization with sparsity-promoting convex regularization was usually regarded as a standard scheme for estimating sparse signals in noise... (read more)

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